Update version to 1.0.0-SNAPSHOT

By: Erik Broes <erikbroes@grum.nl>

paper-api/pom.xml

@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.bukkit</groupId>
     <artifactId>bukkit</artifactId>
-    <version>1.9-pre5-R1-SNAPSHOT</version>
+    <version>1.0.0-SNAPSHOT</version>
     <name>Bukkit</name>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>